| Model: | DQ16 18 20 22 |
|---|---|
| Brand: | TONGRUI |
| Origin: | Made In China |
| Category: | Industrial Supplies / Machine Hardware / Fastener & Fitting |
| Label: | All thread bar rock |
| Price: |
US $4
/ pc
|
| Min. Order: | 1000 pc |
| Live Chat: | Last Online:26 Jun, 2012 |
All-Thread bar Rock Bolt (Continuous Thread Rock Bolt):
All-Thread bar Rock Bolt is used together with dome plate and net for reliable ground support in mines, tunnels, slopes, or wherever .
1.FEATURES :
(1) In the longitudinal direcition , rock body has equal tensile strength ,that is about 40% higher than the reverse-twist bolt in the same specification .
(2) Extend the support area , not only be used by end anchoring ,but also be used by fully anchoring ,that has a better support efficiency .
(3)Low price, widely used in coal mines, railways, hydropower and other types of roadway projects
